Improvement in electro-magnetic locks



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An ordinary key-board, similar to that used on telf' Q nnnnrfannnli,or.sri-LOUIS,-M'sSofUnL' @marchaient 103,952, cette november a,"1s1o." j

' IMPROYEMHT et :mcrae-amener@ .L'ocKsa 7 l' l The Schedule referred toin these-Letters Patent and shaking pax et the same.y

Be it, known that I, HENRY Annex, of St. Louis, 1n the county 'of St.Lous and State .of Missouri,

have invented a new and improved Elcctrodlfagnetic Lock'jand'I do hereby'declare that the following is 'a full, clear, and exact descriptionthereof,

" 'which' will enable othersskilled in the art to make :andtnsethe'same, reference being had .to the accom;

panynig drawing forming part of this specification.

:Figure Il' represents a sidc'view ot my improved electromagnetic lock.

ligure 2 isa.' face o r front view of tlic'samc. 1* igure 3 1s a plan ortopvicw ol thc same.

"'Figme 'isf'a diagrfn, showing the general arranges `nent ofconductors.

. parts.`

`My invention has for iltsobjc-ct toco construct al lock for safes,faults, .860., that thc saine may heop crated entirely-by electricity,whereby the bolts may be withdrawn'. r

'Theinvent-ion consistsehictly in combining the'bolts of fthe lockjwithan electro-magnet, which, when charged, will serve to withdraw the boltsso as to iin-- 'lock the doorn'.l

By this arrangement the ylock can he arranged wit-hin the bodyof'th'e'lsafe, and -rlccd not be attached to the door, exceptlie part thatlocksfrom or into the door.

The key-board `for directingthe currents of the scveral'conductors neednot he attached to the safe or door, but may he arranged atany suitabledistance from the safe or in a ditierent room or building.

The invention consists 'also in thc construction of thecombination-rods, which arcppointcrs projecting from revolving disks,and oonnecting'thc broken fragments of a conductor or conductors forworking the l t, bolt crother part of the lock.

The invention consists also in the application to such an electriccombination lock of an alarm-bell, which is' 'worked by branches fromthe main conductors.

' Finally, theinvention consists in the application to .the revolvingdisks of arms that connect the. branch conductors whichA operate thebell.

A A'A in the drawing is a series of electro-magnets, connected, by meanspt'wircs a b, with the poles egrphic instruments, is connected with oneof the wires a b, to establish the current through `the same wheneverdesired. '.Lhc position ot' the key c is indicated in the diagram, fig.4-.f

--B isashaftixedinaframe,0. c

Upon it is hung a. series of ratchet-wheels, D-D,

I the teeth. of cach wheel being marked or numbered.

Similar letters of reference indicate correspoinling'v each carrying anarmature, l, forone ofthe electromagnets A.

1To each lever 1s pivfted, or with it is connected, a

single or double pawl or levcr, ll, whereby, during the oscillations ofsaid lever, intermittent rot-ary mot-ion is imparted to one of theratchet-wheels D.

Each wheel Dhas a projecting arm, e, with a pivoted or other insulatedmetallic plate, f, which, when it strikes the ends `of a pair of wires,gli., connects 'thc same. 'A pair of such wires g lt is connected withand projects from cach pair of wires a b. By means of weights, i, orsprings, the levers .E arc helghway from' thema-nets A.

. .Each wire g is, by a branch, 7,connectcd with abell,

G, on the key-board, and through the inetajic clap- .per H of said bell.and a'small wire, K, or any-other 'equivalent connection with anelectro-magnet, I, which is fixed -near the bellto .withdraw thcclapper, thewires h having other blanches lr that reach also to themagnet -I,- while 'a spring, 1,'serves to couteract the I .magnet I,'1'. c.,.to hold the clapperagainst the bell.

J is Vanother electro-magnet set opposite tothe bolt I 1,or any otherpart of the lock, which,when attracted? by said magnet, will cause thccntireor partial open-l -ing of the lock.

The magnet J is, by means of wires m n, connected with a battery; onelwire, n, isset .up in fragments betwccn the several wheels D.

Each wheel D has, pivotcd or otherwise adj ustably applied to it, an armor lever, M,. which can be set at will opposite to any suitable toothofits wheel. This' arm or wheel carries a metallic insulated plate, o,

which, when it strikes the wire n, connects twofragments of thc same.The operation is as iollows:`

Whenever, by a key, the current through a pair of wires a b isestablished, the Aarmature F opposite the magnet A, pertainingto suchwires, is attracted by its magnet, and this motion causes the lever Etoturn its wheel l).

'When the wheclD has been so far turned as to bring the plate o of its'Vlever M in contact with the wire n, the next key is worked until allitsplates o are vincontactwith' the n, connecting the several sec-V tionsofthc same `and establishing a current through the magnet J. '.lhenthearmature p on the boltL is attracted to unlock the door. Not untilall the plates o are incontact with .the several sections of the wire nwill the 'door be unlocked. As the disks D are,

however, concealed within the safe, it will b e impossiblel for any one.not lmowing the combination to uw vlock the safe.

The key is furnished hythelbelfl; the current through sind @titte t bellrings .theigure lis opposite toog..

more, the arm M is setat 10, the= ringing of the-bell i or .arrangementof mechanism i the spirit of my invention. i 4of the conductor n, I-can,

wires is established whenever .the plate f 'strikes and connects thewires g h; -"1;l'1us,A ifthearm een one disk is' fixed so that .thesections of n will be. oppositey to the figure 1 of said disk,1-when.fthe plante fst-rikesthc wires g h., the 'operator .will know that whenthe will indicate that nine'mor motions'o'f the key willbring the diskand'am Minto t-llodesiredprc'per p o.;v sit-ion. As theiiguresl to.which the several'arms'M.

are set cannot possibly be ascertained from tlieapp'a1-.

ratus, the lock will be absolutely safe. Tl1ecombination is changed byvarying the positionsiof'the arms M onth disks D. l

Ido not claim' or confine ysel' toany kind oflockon part of lock towhich the electro-magnetic apparatus is; applied, nor, ,in fact, to' anyparticular construction; forni; above 'set forth,*s"'the same may beinfinitely varied without departing from of course, use cups 'of mer--'cury or any other equivalent.; -but I do claim and desire tos'ecureby-Letters Patent-f l. The levers E E, attracted by the fixedrnaguets M,as setforth o v l. I p y -4 r2. AThe levers M, arranged whit-hin alock,t' conuee .the fragments of a conductor; n, so las to est-ablishffisterfwill lbe required', as setfort-h.

, to-impart intermittent'roiary.inotionto the Vlever as'isetforth-.L .ll

3. The ratchet-disks-D,combinedwith the lever.

current through such conductor, for moving theV boliV M in such mannerthat the combination'of 4the loci:y

will'be varied by varying' the.' positions of-.said lever ontliedisks,as specified, p i y 1 '.4. The combinati'on'fof the arinsz with thelevers M, serving to workan alarmybywhieh the position of each 'lever vMWill be lindicated las Het forth? 5. A.An eleetriolock, provided withlan alarm-bell. or equivalent linstrument, whereby the yposition .of ,the

`main levers M will be indicated, so .that no other eg- -Theabovespecification ofmy'inve'ntion signed b5 meth'is 22d day of March,` 187Instead ofthe fragments

